4 ms·

No, it works exactly like solar does. The companies say one thing, but reality doesn't match up. It doesn't matter how careful an installation is.

• tcfhgj 4y ago
  Why not? The real heating demand can be observed up front and with the typical (or even exact) weather you can easily determine the efficiency of the heat pump. Yeah expect some inaccuracies, but not this huge
  • NDizzle 4y ago
    My weather person can't even predict what Thursday is going to do. You want accurate predictions for all of winter? That's why I mentioned solar. It's the same, but with sunlight.
    • tcfhgj 4y ago
      no predictions necessary, just check out the data from last year